About printer’s marks
When you prepare
artwork for printing, a number of marks are needed for the printer
device to register the artwork elements precisely and verify correct
color. You can add the following kinds of printer’s marks to your
artwork:
- Trim Marks
- Fine (hairline)
horizontal and vertical rules that define where the page should
be trimmed. Trim marks can also help register (align) one color separation
to another.
- Registration Marks
- Small
targets outside the page area for aligning the different separations
in a color document.
- Color Bars
- Small
squares of color representing the CMYK inks and tints of gray (in
10% increments). Your service provider uses these marks to adjust
ink density on the printing press.
- Page Information
- Labels
the film with the name of the artboard number, the time and date
of printout, the line screen used, the screen angle for the separation,
and the color of each particular plate. These labels appear at the
tops of the images.

Printer’s marks
- A.
- Star target (not optional)
- B.
- Registration
mark
- C.
- Page information
- D.
- Trim marks
- E.
- Color
bar
- F.
- Tint bar